User`s guide

RIGOL Chapter 2 Front Panel Operations
2-4 M300 User’s Guide
5 Advanced Source (Available only when the DMM module is not
installed or disabled)
This setting is only available when an external digital multimeter is used. The
advanced source provides the advanced channel signal. When receiving the
advanced channel signal, the instrument disconnects the channel currently
selected and closes the next channel in the scan list.
When an external DMM is connected, use the up/down direction keys to select
Adv Src and use the left/right direction keys to select the desired advanced
source.
 Auto:
After finishing measuring the current channel, the current channel is
disconnected and the next channel in the list is closed automatically.
 Single:
After finished measuring the current channel, the unit will wait for user
input before moving to the next channel in the list. Pressing Single to
disconnect the current channel and close the next channel.
Because both the “Single” advanced source and the manual trigger use the
same way, pressing Single, to generate signal, the manual trigger mode
does not support “Single” advanced source.
In high speed mode, users can select “Single” but the operation will be
invalid.
 External:
The scan will advance after receiving a trigger on the external advanced
channel signal. This signal, typically the VMC signal from the external DMM,
is input from pin 6 of the Alarm/Ext Trig interface (converted from the
[RS-232/Alarms/Ext Trig] interface). After “External” is selected, you
need to select the edge type of the input signal (use the up/down direction
keys to select Input Edge and use the left/right direction keys to select
“Rising” or “Falling”).
As the “External” advanced source input and the external trigger input use
the same pin, the external trigger mode does not support “External”
advanced source.
Alarms/Ext Trig Interface
Pin 6: Ext Trig Input/Channel Advance Input